MasterClass Smart Ceramic Square Baking Tin MasterClass Smart Ceramic bakeware sets a new standard for non stick performance. The double ceramic coating is ultra durable, and ensures effortless cleaning and effective food release. So effective, in fact, that you often won't need to grease, so you can make healthier bakes with less hassle All this is aided by the warp-resistant carbon steel core, with rolled edges for extra strength and easy handling. Dimples on the inside of the pan assist with food release, and allow air to flow for even browning. It saves space too. Smart Ceramic is cleverly designed as a nesting bakeware set, so as you build your collection, you can stack this square cake tin with other pieces. All eight pieces nest into the space of the largest roasting tin. This baking pan measures 23 x 23 x 6 cm (9 x 9 x 2½ inches). Like all Smart Ceramic products, it is dishwasher safe, and is BPA, PFOA and PTFE free.